Northwesterly cold winds characteristic of the East Asian Winter Monsoon (EAWM) dictate winter climatic conditions over the Japanese Archipelago. Japanese temperate bass Lateolabrax japonicus is a commercially important coastal fish that spawns offshore in winter and uses shallow waters as nursery habitats. To investigate the effects of EAWM on the planktonic period of L. japonicus, eggs, larvae, and juveniles were quantitatively collected in Tango Bay on the Sea of Japan side in winter and spring from 2007 to 2017. Although eggs occurred close to the mouth of the bay, planktonic larvae occurred further inside as they developed. The horizontal distribution of planktonic larvae, combined with water velocity data obtained from mooring observations, indicated that planktonic larvae are transported south‐ to westward through Ekman current and an anticyclonic circulation, which are driven by northwesterly winds. To evaluate survival during the planktonic period in each year class, the abundance of benthic larvae/juveniles was divided by winter total landings of Lateolabrax spp. (proxy of the spawning stock size). This survival index exhibited a positive correlation with the northwesterly component of winter winds, and a negative correlation with winter air temperature (average from December to February, Spearman's correlation, p < .05). There was, however, no significant correlation with winter water temperature or winter freshwater discharge in the bay. We conclude that northwesterly cold winds of EAWM play a critical role in transporting L. japonicus eggs and larvae toward nursery habitats, specifically beaches and estuaries fringing the innermost part of Tango Bay.

中文翻译：

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冬季季风促进了日本温带鲈鱼Latobrabrax japonicus卵和幼虫向日本海探戈湾最内层的运输。

东亚冬季风（EAWM）的西北偏冷风决定了日本群岛的冬季气候条件。日本温带鲈鱼Lateolabrax japonicus是一种商业上重要的沿海鱼类，冬天在海上产卵，并使用浅水作为苗圃栖息地。研究EAWM对日本刺槐浮游期的影响从2007年至2017年的冬季和春季，在日本海一侧的探戈湾中定量地收集了卵，幼虫和幼虫。尽管卵靠近该湾的入口，但随着它们的发育，浮游幼虫在其内部进一步发生。浮游幼虫的水平分布，再加上从系泊观测获得的水速数据，表明浮游幼虫通过埃克曼流和反气旋环流由西南风向南向西输送。为了评估每个年级的浮游时期的生存率，将底栖幼虫/幼体的丰度除以Lateolabrax的冬季总着陆量spp。（产卵数量的代理）。该生存指数与冬季风的西北分量呈正相关，与冬季气温呈负相关（12月至2月的平均值，Spearman相关，p  <.05）。但是，与海湾的冬季水温或冬季淡水排放没有显着相关性。我们得出的结论是，EAWM的西北偏冷风在将日本血吸虫卵和幼虫向苗圃栖息地（特别是探戈湾最深处的海滩和河口）运输中起着关键作用。